Changes
- (upgrade) UPS API integration to the latest 387
- (fix) intermittent issue with Canada Post options 381
- (add) configurable options to FedEx and DHL express connections
- (fix) carrier config mutation regression
- (add) metadata to tracker POST API request data
- (fix) DHL express `"DOC"/"NONDOC"` 367
- (remove) support for UPS Freight
Updating to UPS REST API with Oauth2 authentication
**UPS and deprecating their XML and JSON legacy APIs in favour of their new REST API with Oauth2 support. You will need to update your Carrier connection with your app `client_id` and `client_secret`**
_follow these instructions to get your new API credentials_
- Visit [https://developer.ups.com/apps?loc=en_US](https://developer.ups.com/apps?loc=en_US)
- Create a new app
- Copy your `client_id` and `client_secret` to update your karrio's UPS connections
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<summary>app creation screenshots</summary>



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